1 files changed, 25 insertions, 0 deletions
diff --git a/tests/ui/sse2.rs b/tests/ui/sse2.rs
new file mode 100644
index 00000000000..172f4079821
--- /dev/null
+++ b/tests/ui/sse2.rs
@@ -0,0 +1,25 @@
+// run-pass
+
+#![allow(stable_features)]
+#![feature(cfg_target_feature)]
+
+use std::env;
+
+fn main() {
+    match env::var("TARGET") {
+        Ok(s) => {
+            // Skip this tests on i586-unknown-linux-gnu where sse2 is disabled
+            if s.contains("i586") {
+                return
+            }
+        }
+        Err(_) => return,
+    }
+    if cfg!(any(target_arch = "x86", target_arch = "x86_64")) {
+        assert!(cfg!(target_feature = "sse2"),
+                "SSE2 was not detected as available on an x86 platform");
+    }
+    // check a negative case too -- allowed on x86, but not enabled by default
+    assert!(cfg!(not(target_feature = "avx2")),
+            "AVX2 shouldn't be detected as available by default on any platform");
+}